Printing-press attachment



Nova 1, 1927. 1,647,388

H. A. AGRICOLA, JR I PRINTING PRES S ATTACHMENT Fil ed March 27. 1924 .fOrm rollers, which, in turn, applytheindividual ink colors to desired portions of the Patented Nov. 1, 1927.

UNITED STAT HERMAN ADOLPHUS AeRIcoLA,;JR., or ATLANTA, GEORGIA, ASSIGNOR or ron'r'Y NINE'PER CENT TO JOSEPH. E. LANE, or nTL'Anr-A, GEORGIA.

. meme-Pa se ATraonMENr.

The 7 present invention has reference to printing presses having multi-color attachments of the general kind set forth in my applicat'ioniserial No. 636,371 'Wh1ch was -fi1ed-Ma 3,1923. I a

The features constituting invention are designed for embodiment mom or more units which. may be conveniently attached to a printing press of standard type whereby it is" adapted to perform chromatic printing. This invention effects the above result by'the employment of a movable carriage Whereon are mounted roller systems in which are ineluded inking and form rollers to which r0- tation may be imparted'by any suitable means; also by the employment of an inking plate infvvhich are assembled a plurality of more colors over certain selected for'mroll- "ers,"o'r desired portions thereof; and also by the provision of one or 1n0restationary inking fountains Which are adjustable infrelation' to-the inking plate whereby ink of one or-Inore colors may be delivered'to'the inking rollers for transference to certain se- {numerous other features of construction and combinations of parts as'will more clearly fhereina'fter appear from the specification and claims, taken in conjunctionrwith the a'ccompanyn'rig dravvings',' wherein the present lected pinionsoffthe inking plate, and fro thence to, certain "selected portions of 'the forlnQ The invention consists v further in improvements are illustrated in the manner ifollowingz' 1 .tion of a; printing pressfvvhereon the form rollers execute a movement around a bender curveycertain of the present lmproveinents "being applied to this'typeofpressyand 7 Fig. 2 is-a front elevation thereof.

vvhe'rein are slidably recei'ved rods 53 and 54,-

"*The press herein shown is equipped with j-pair of connected arms F which oscillate j (abouts pivot 50. Formed on each of these arms are vtvvopairs of. guides 51 and 52 respectively, each equipped With a compression spring 55. At their outer ends thGtWO rods 54 are suitably formed to provide bearings for a form roller 56. The other rods 53 7 ing, pinion 24. p v

.Forimparting "r'ot ation to the rod 27 v Whereon the inking fountains are positioned,

a connection of'the kind shown in Figg l may a journaled'other form rollers 58 and 59; also a sectional vibratory roller 60; 'Pivoted to the truck is a frame 61' in Which is journal'ed a, brayer or inking roller 62, preferablyof are connected'with a truck-57 in which are lesser diameter than the form rollers just described; The'inkingroller islequipped at its ends with fa pair. of 'vvheels-63 of slightly greaterdiaineter adapted t'oride .upon suit- I able guides or-rails'upon' the sides offlthe press. A, contraction spring '64 connects the v inking roller frame 61 With'thearm- F so as to normally hold'the heels 63 in firm contact 'With'the rails Whereon they'a're designed to travel.

I The ink distributing plate E isshown as provided with a plurality'of meshing pinions 24 which are adjustably arranged in groups and adapted to be revolved through acom: mon drive As indicative of. one means which is suitable for this purpose; I have shown several of these pin-ions asfeach pro vided with a ratchet heel 65 Which extends through to the underside of; tlie'i nk' dis tributing plat'e; associated with this 'ratchet is a dog 66, and connecting these severaldogs is a' linkage67 from which is downwardly projected a stem 68; "A limited= reciprocatory movement is imparted to this's'tem through I on an arm 7l'whi'ch extends between-the two extremities of a'bell crank lever72 pivoted to the press as'at 73 for rocking-movement beneath the ink distributing plate One end the means described; eachrocking-movement of the arm F Will cause the bellcran'lilever 1 V 7 to be rocked With the consequence that' the' :FigQl is an endelevation'of'theupper por- 67, the result being-that 'the'several ratchets ;65 are'intermittently rotated-to efiect a like I 100, i

movement-on the part of 632F6 nk di i bi be used. This includesa'link 7 6 extending,

. 9 two pins 69 and 70 will alternately move the stem-' 68 to thereby reciprocate the linkage from "the arm {71 'tothe arm 33" vvhich is loosely pivoted on the rod 27'. It follows that With eachrockingof the bell crank lever, the arm 38 Will likewise be movedffor a distance sufficient to impart an intermittent movement to a ratchet wheel secured to this rod whereby the fountain rollers 28 are given the several rollers being linked so as to per- .mit of such movements.

The inking roller 62 is "held away from the form at all times due to the greater diameter of its wheels 63,

but upon passing around the bend 77 these wheels will descend upon an incline 7 8 to a point oflower elevation permitting the inking roller to come into contact with the ink distributing plate.v Throughout the rest of use this movement, the inking roller remains in contact with the several disks 24 and eventually engages with the inking fountains to receive therefrom a supply of ink. The ink distributing plate which in'Fig. 6 is shown 7 with its two end sections separated may have its meeting edges toothed or otherwise formed asat 7 9 so as to dovetail or interfit when these plate sections are moved together. This is of advantage in one color printing as thereby I eliminate the formation of any ink line which would otherwise H develop on the rollers vtothe detriment of an evendistribution of ink thereupon.

f I would have it noted that the attachments of this inventionmay be readily applied to variouskinds of standard printing'presses, of which one suggestive type is illustrated in the drawing. By employing an inkingplate "having a plurality of adjustable pinions, and

. associating therewith a pair of adjustable inking fountains, I am able to provide for an unmixed transference of two inking colors to suitable form rollers, the result being that the. form is inked with the two colors at only the desired places.

i The several mechanisms ust described derive motion from the moving parts of the press, being operatively connected therewith in avery slmple and effective manner.

'reason, it is desired to change over from chromatic to one color printing, the original inking plate, form rollers, etc., may be replaced on the press, with the expenditure of but little efiort and time.

I claim: r Y j 1. In. a printing press, the combination of a form and an inkingplate disposed in an- If, for any gular relation to each other, a pair of connected oscillating arms mounted on the press, a truck yieldingly mounted between the arms having wheels adapted to travel along the press sides and around a bend thereupon, form rollers associated with the truck, a frame pivoted to the truck, a brayer mounted in the frame, wheels associated with the brayer adapted to ride upon the press sides and to prevent contact between the brayer and the form, the surfaces whereon the wheels ride being so formed as to permit the brayer to engage with the inking plate, an

inking fountain associated with. the plate,

and an operative connection between the fountain and'the oscillating arms such that movement is communicated from the latter to the former, substantiallyas described. v .e

2. A printing press having, in combina- I tion, a form and an inking plate in angular relation, the plate being provided with a plurality of rotatable pinions, a plurality of inking fountains associated with the plate,

a common rod whereon the fountains are ad jus'tably mounted, a driving connection between the rod and the severalpinions, 'a form roller and a brayer adapted forangular travel back and forth between the form and inking plate, means for causing such movement of the form roller and brayer, and a connection from said means tothe driving connection between the pinions and rod whereby an intermittent rotation is imparted thereto, substantially as described.

3. In combinatioma printing'press having a form, an ink distributing plate, and a roller movable fro1n one to the other to transfer. ink from the plate to the form, the

plate comprising a pluralityof movable sec-1 tions withmeeting edges ,interfitted when engaged and completely separated when dis- I engaged whereby to prevent the formation of an ink l ne on the roller, substantiallyas described.

4. The combination with a printingpress having a form, an ink distributing plate, and a roller movable from the plate to the form to transfer ink fromfioneto the other, the

ink plate comprising a plurality. ofjsections' movable toward and from each other in a direction which is parallel to the axis of the roller and having interfitting elements on the meeting edges of the sections such as to prevent the formation of an'ink linewhen the sections are engaged, there being ajclearance in the direction of roller travel between such elements when the sections are completely'separated, substantially as described;

HERMAii ADOLPHUS VAGRICOLA, Jr. 

